Deunan Knute, a young soldier and one of the Global War's last survivors, is rescued by Hitomi, a Second Generation Bioroid. Knute's escape attempt is stopped by her former lover Briareos Hecatonchires, now a cyborg. She realizes that the war had ended and she is in a Utopian city called Olympus. Its population is half-human and half-Cloning, a genetically-engineered species called Bioroboticss. Olympus is governed by three factions: Prime Minister Athena Areios; General Edward Uranus III, head of the Olympus Army; and a Council of Elders. Everything in the city is observed by an artificial intelligence named Gaia from a building called Tartaros. While there, Deunan joins the counter-terrorism organization ESWAT.